copost.net - robtex.com
copost.net
net
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1778368211 | ||||||
MX for
copost.net |
Same first word
Similar names
DNS History
13 records (7 active, 6 former)
●NSns1.xserver.jp2026-05-06 → 2026-05-09 · 3 obs
● 2026-05-06 22:52:30
● 2026-05-09 23:15:14
●NSns2.xserver.jp2026-05-06 → 2026-05-09 · 3 obs
● 2026-05-06 22:52:30
● 2026-05-09 23:15:14
○NSns23.domaincontrol.com2015-07-26 → 2016-03-01 · 4 obs
● 2016-03-01 14:20:16
○ 2016-07-04 06:11:36
○ 2026-05-09 23:15:14
○NSns24.domaincontrol.com2015-07-26 → 2016-03-01 · 4 obs
● 2016-03-01 14:20:16
○ 2016-07-04 06:11:36
○ 2026-05-09 23:15:14
●NSns3.xserver.jp2026-05-06 → 2026-05-09 · 3 obs
● 2026-05-06 22:52:30
● 2026-05-09 23:15:14
●NSns4.xserver.jp2026-05-06 → 2026-05-09 · 3 obs
● 2026-05-06 22:52:30
● 2026-05-09 23:15:14
●NSns5.xserver.jp2026-05-06 → 2026-05-09 · 3 obs
● 2026-05-06 22:52:30
● 2026-05-09 23:15:14
●MXcopost.net2026-05-06 → 2026-05-09 · 3 obs
● 2026-05-06 22:52:30
● 2026-05-09 23:15:14
○MXmailstore1.secureserver.net2015-07-26 → 2016-03-01 · 4 obs
● 2016-03-01 14:20:16
○ 2016-07-04 06:11:36
○ 2026-05-09 23:15:14
○MXsmtp.secureserver.net2015-07-26 → 2016-03-01 · 4 obs
● 2016-03-01 14:20:16
○ 2016-07-04 06:11:36
○ 2026-05-09 23:15:14
○A184.168.221.32015-11-26 → 2016-03-01 · 5 obs
● 2015-11-26 02:19:46
● 2016-03-01 14:20:16
○ 2016-07-04 06:11:36
○ 2026-05-09 23:15:14
○A184.168.221.572015-07-26 → 2015-07-26 · 3 obs
○ 2015-11-26 02:19:46
○ 2026-05-09 23:15:14
●A85.131.209.1542026-05-06 → 2026-05-09 · 3 obs
● 2026-05-06 22:52:30
● 2026-05-09 23:15:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| copost.net | ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp... | - |
✅ Authoritative Response
Server:202.226.36.164
NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for copost.net (unsigned zone)
⏱️ Timing
Total: 1100ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 85.131.209.154 |
| NS | 5 | ns3.xserver.jp, ns4.xserver.jp... |
| MX | 1 | copost.net (pri: 0) |
| TXT | 1 | v=spf1 +a:sv16613.xserver.jp +a:copost.n |
| SOA | 1 | ns1.xserver.jp root.xserver.jp |
Analysis
Mail Server Role
For copost.net, the mail server is copost.net.
IP Addresses
copost.net resolves to one IP number: 85.131.209.154.
other host names including wakosiki.co.jp, www.ryuoffice.com, breast-clinic.jp, bubublog.com and ryuoffice.com share IP numbers with copost.net.
Name Servers
copost.net is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.
copost.net at least partially shares name servers with other domains, for instance karaushi-office.jp, daiwa.pw, basekobe.com, ma-bo-harusaya.com and ihha.jp.
Host names with three IP numbers:
ns1.xserver.jp points to: 202.226.36.164, 202.226.36.170 and 202.226.36.246; ns4.xserver.jp points to: 183.90.224.226, 183.90.224.230 and 202.226.39.247; ns5.xserver.jp points to: 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Host names with one IP number:
ns2.xserver.jp points to: 35.72.43.26; ns3.xserver.jp points to: 202.226.36.247.
Mail Servers
copost.net is served by a single mail server, copost.net.
copost.net resolves to IP 85.131.209.154.